Authorities on Monday night were investigating a fatal crash on Highway 1 near the Sonoma County-Mendocino County border on the coast.

A car struck a tree off the highway north of Breakers Beach near The Sea Ranch at 8:45 p.m., CHP records show.

One person was killed, said Jennifer Neal, a Cal Fire communications operator.

The car was on fire when crews arrived, but they put it out quickly, she said.

Further details were unavailable.